Joe Sobchuk
The transmitter's code for Home Security with RF
Revision 0:47380c5f575d, committed 2014-12-08
- Comitter:
- jsobchuk3
- Date:
- Mon Dec 08 22:43:22 2014 +0000
- Commit message:
- ECE 4180 Final
Changed in this revision
diff -r 000000000000 -r 47380c5f575d hmac_md5.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hmac_md5.lib Mon Dec 08 22:43:22 2014 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/igrokhotkov/code/hmac_md5/#83f3dcfa5c8f
diff -r 000000000000 -r 47380c5f575d main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Dec 08 22:43:22 2014 +0000
@@ -0,0 +1,65 @@
+#include "mbed.h"
+#include "hmac_md5.h"
+#include <stdio.h>
+#include <string.h>
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+
+DigitalIn pb(p20);
+Serial rf(p9,p10);
+
+
+int main() {
+ pb.mode(PullUp);
+ // Delay for initial pullup to take effect
+ wait(.01);
+
+ rf.baud(1200);
+ int old_pb=0;
+ int new_pb;
+
+ /*const char * key = "Dhruvin";
+ const char * text = "open";
+ char output[26];
+ char output2[3];
+ */
+
+ int i = 0;
+ /*HMAC_MD5(key, text, output);
+ output2[0] = output[0];
+ output2[1] = output[1];
+ output2[2] = output[2];
+ */
+ char key[4] = "Dhr";
+ for (i = 0; i < 4; i++) {
+ key[i] = (key[i] + 5);
+ }
+ while (1) {
+ new_pb = pb;
+ if( (new_pb==0) && (old_pb==1) ) {
+ //Send out the real data whenever the button is pressed
+ rf.putc(key[0]);
+ rf.putc(key[1]);
+ rf.putc(key[2]);
+
+ //HMAC_MD5(output2, text, output2);
+ for (i = 0; i < 4; i++) {
+ key[i] = (key[i] + 5);
+ }
+
+ }
+
+ else {
+ //RF Transmit Code
+ myled1 = 0;
+ //Send 10101010 pattern when idle to keep receivers AGC gain locked to transmitters signal
+ //When receiver loses the signal lock (Around 10-30MS with no data change seen) it starts sending out noise
+ rf.putc(0xAA);
+ myled1 = 0;
+
+ }
+ old_pb = new_pb;
+
+ }
+}
diff -r 000000000000 -r 47380c5f575d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Dec 08 22:43:22 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/031413cf7a89 \ No newline at end of file